The GHRSST MODIS_A-JPL-L2P-v2019.0 will be accessible through HiTIDE. The PO.DAAC is currently working on it. In addition, There are several recipes which can subset the region of the interest.
1. Subsetting Data Sets Using NCO Utilities --https://podaac.jpl.nasa.gov/forum/viewtopic.php?f=85&t=340
2. Using Matlab and OPeNDAP to Subset Level 2 Datasets -- viewtopic.php?f=85&t=369
3. Using Python to subset large gridded datasets (v2) -- viewtopic.php?f=85&t=219
Let's know if you have more questions.